Wegovy and Hair Loss: What to Know
Hair loss (telogen effluvium) has been reported by some patients taking Wegovy (semaglutide). This type of hair shedding is typically related to rapid weight loss and nutritional changes rather than a direct effect of semaglutide itself. It is usually temporary and hair growth typically resumes once weight stabilizes and nutrition is optimized.
How Common Is It?
report hair loss while taking Wegovy (semaglutide).
Why Does Wegovy Cause Hair Loss?
- •Rapid weight loss triggers telogen effluvium, a condition where hair follicles shift from the growth phase to the resting phase prematurely
- •Caloric restriction and reduced protein intake can deprive hair follicles of the nutrients needed for healthy growth
- •Deficiencies in iron, zinc, biotin, and other micronutrients from eating less can accelerate hair shedding
- •Physical stress from significant metabolic changes can trigger the body to redirect resources away from hair growth
When Does It Happen?
Hair loss on Wegovy typically begins 2-4 months after starting treatment, coinciding with the period of most rapid weight loss. Shedding may continue for 3-6 months but usually resolves within 6-12 months as weight loss slows and nutritional status improves. New hair growth typically begins before shedding fully stops.
How to Manage Hair Loss on Wegovy
Ensure adequate daily protein intake of at least 60-80 grams to support hair follicle health
Consider a biotin supplement (2,500-5,000 mcg daily) after consulting with your doctor
Take a daily multivitamin with iron, zinc, and vitamin D to address potential nutritional gaps
Avoid harsh hair treatments, tight hairstyles, and excessive heat styling during shedding periods
Talk to your dermatologist if hair loss is significant, as they can check for other contributing factors
Focus on nutrient-dense foods rich in omega-3 fatty acids, such as salmon, walnuts, and flaxseeds
When to Contact Your Doctor
Seek medical attention if you experience any of the following:
- ⚠Hair loss is severe, with noticeable thinning or bald patches
- ⚠Hair shedding continues beyond 6 months without any signs of regrowth
- ⚠Hair loss is accompanied by other symptoms such as extreme fatigue, cold intolerance, or brittle nails (which may indicate thyroid issues)
- ⚠You notice hair loss in unusual patterns rather than general thinning
- ⚠You are losing hair from eyebrows, eyelashes, or body hair in addition to scalp hair
Track Hair Loss with JellyPal
Log your hair loss episodes, identify patterns, and share detailed reports with your doctor. JellyPal helps you understand how Wegovy affects you over time.
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